New process design for reduction of springback by forming with alternating blank draw-in

Ultra-high-strength steels (UHSS) offer exceptional opportunities in car body manufacturing regarding the improvement of passenger safety as well as the reduction of total vehicle weight. However, springback represents a serious problem when forming such sheet metal materials. In this context, a new approach that can be used for significant reduction of springback was developed at Institute for Metal Forming, University of Stuttgart (IFU). The...